// @(#)Bouncer.java   9/2002
// Copyright (c) 1998-2002, Distributed Real-time Computing Lab (DRCL) 
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package drcl.comp.lib;

import drcl.comp.*;

/** This component bounces back any arriving data at the port where the data comes.
One can delay the response by specifying the delay parameter.
The component also keeps a counter to count the data arrivals. */
public class Bouncer extends Component
{
  long count = 0;
  double delay = 0.0;

  public Bouncer()
  { super(); }
  
  public Bouncer(String id_)
  { super(id_); }
  
  public String info()
  {
    return "count = " + count + "\ndelay = " + delay + "\n";
  }
  
  public void reset()
  {
    super.reset();
    count = 0;
  }

  public void duplicate(Object source_)
  {
    super.duplicate(source_);
    count = ((Bouncer)source_).count;
    delay = ((Bouncer)source_).delay;
  }

  public synchronized void process(Object data_, drcl.comp.Port inPort_) 
  {
    count++;
    if (delay > 0.0)
      send(inPort_, data_, delay);
    else
      inPort_.doLastSending(data_);
  }
  
  /** Sets the counter value. */
  public void setCount(long v_)
  { count = v_; }
  
  /** Returns the counter value. */
  public long getCount()
  { return count; }
  
  /** Sets the delay. */
  public void setDelay(double v_)
  { delay = v_; }
  
  /** Returns the delay. */
  public double getDelay()
  { return delay; }
}
